System requirements Commander Keen
Commander Keen: Invasion of the Vorticons: Episode 1: Marooned on Mars (Dec. 14th 1990) Episode 2: The Earth Explodes (1991) Episode 3: Keen Must Die! (1991) Commander Keen's very first adventure, and the debut of id's groundbreaking side-scrolling technology.
Minimum pc requirements list Commander Keen
Minimum: A 100% Windows XP/Vista-compatible computer system
